May Weather in Aylmer, Canada

Last updated: June 18, 2025

In May, the average temperature in Aylmer, Canada is a comfortable 13°C (55°F). Expect minimums as low as -1°C (30°F) and maximums reaching 26°C (79°F). During this time, precipitation averages 101 mm (4.0 in) over about 13 days, contributing to an average humidity of 82%. Stay prepared for a mix of weather!

May Temperature in Aylmer

In May in Aylmer, the average temperature is 13°C (55°F). Maximum temperatures can reach 26°C (79°F), while minimum temperatures can drop as low as -1°C (30°F). This makes Aylmer an ideal destination for travelers seeking a mix of mild days and cooler nights during their visit.

May Weather in Aylmer: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Aylmer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aylmer, May typically has an average temperature of 13°C (55°F), with highs reaching up to 26°C (79°F) and lows dropping to around -1°C (30°F).

Data source: Temperature data for Aylmer generated using information from the Copernicus Climate Change Service.

May Precipitation in Aylmer

In Aylmer in May, the precipitation amount is 101 mm (4.0 in) over the course of 13 days.

May Precipitation Trends in Aylmer

The chart displays monthly precipitation patterns in Aylmer, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Aylmer, May typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Aylmer

In Aylmer in May, humidity is 82%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities sticky and uncomfortable for traveling.

May Average Humidity in Aylmer

This chart illustrates the average monthly humidity levels in Aylmer, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Aylmer is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Aylmer

In Aylmer in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Aylmer.

Maximum UV Index Levels in Aylmer for May

The chart shows the monthly maximum UV Index (UVI) for Aylmer in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Aylmer typically reaches 9, which falls under the very high exposure category.

Data source: Aylmer May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How May Weather in Aylmer Compares to Other Months

Weather in Aylmer varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Aylmer, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Aylmer, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	77 mm (3.0 inches)	90%	moderate
February Weather	-3°C (27°F)	81 mm (3.2 inches)	90%	moderate
March Weather	1°C (34°F)	83 mm (3.3 inches)	87%	moderate
April Weather	6°C (43°F)	109 mm (4.3 inches)	87%	very high
May Weather	13°C (55°F)	101 mm (4.0 inches)	82%	very high
June Weather	19°C (66°F)	91 mm (3.6 inches)	81%	very high
July Weather	22°C (72°F)	91 mm (3.6 inches)	79%	very high
August Weather	22°C (71°F)	90 mm (3.6 inches)	80%	very high
September Weather	18°C (65°F)	79 mm (3.1 inches)	81%	very high
October Weather	12°C (55°F)	121 mm (4.8 inches)	84%	high
November Weather	5°C (41°F)	94 mm (3.7 inches)	88%	moderate
December Weather	1°C (33°F)	82 mm (3.2 inches)	87%	low